National Museum of Nuclear Science & History
John S. Wahl was an American physicist. Wahl’s specialty was nuclear physics. He worked for Dr.
Robert J. Moon (1911-1989) was a physicist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project and a signer of the Szilard petition.
Anthony D. Capua, Jr. served as a sergeant in the 393rd Bombardment Squadron. He was regularly assigned as an assistant engineer/scanner in the Up An’ Atom, but did not fly in that plane in the August 1945 bombing missions on Hiroshima and Nagasaki.